How do I stop underselling myself in interviews?
TL;DR
Recognise that humility and self-deprecation, while natural, are read as a lack of confidence by interviewers who have no other reference point for you. The fix is not to become over-confident to the point of arrogance. It is to present your experience clearly and factually, position your experience in a way that is meaningful for the interviewer, and give yourself permission to own your results without caveating them.
Why do capable people undersell themselves?
Most candidates who undersell themselves are not lacking in experience. They are managing a tension between knowing what they have achieved and feeling uncomfortable saying it out loud. The result is caveating, minimising, or pre-empting criticism by getting there first: "This might sound small, but..." or "I was only part of the team that..." or "I don't think I can really claim that."
This is often a self-protective mechanism. If you are the first person to downplay your contribution, nobody else can do it for you. It feels safer than putting a claim out there and having it challenged. But the problem is that an interviewer who does not know you has no other reference points. When you minimise your experience, they take it at face value. They hear a lack of confidence, not humility.
The environment you are coming from matters
Underselling rarely starts in the interview room. It builds over time in environments where your contributions are overlooked, claimed by others, or met with indifference. If you have spent months or years in a workplace where what you say does not seem to matter, where your ideas are absorbed without credit, or where your authority is subtly undermined, your sense of your own value erodes. You internalise the message that your work is not that significant, even when the evidence says otherwise.
By the time you reach an interview, that internalised narrative walks in with you. You are not underselling because you lack experience. You are underselling because your environment trained you to.
Recognising this is the first step. The second is actively separating what your environment reflected back to you from what you actually delivered. The evidence of your impact exists regardless of whether anyone acknowledged it at the time.
The double bind for women
There is an additional layer for women. Research by Mary Ann Sieghart, set out in her book The Authority Gap, shows that men are generally assumed competent until proven otherwise, whilst women are assumed less competent until they prove themselves. When women display confidence and assertiveness, the same behaviour that is seen as strong leadership in men is often judged negatively in women, attracting labels like "aggressive", "abrasive", or "difficult".
This creates a genuine double bind. If you are not confident enough, you will not be taken seriously. If you are too confident, you risk being disliked. Many women learn to navigate this by tempering their confidence with warmth, smiling, softening their language, being conscious of how they are being received. It is exhausting, and it is an additional cognitive load that male candidates rarely carry.
Knowing this is real and evidence-based can be oddly freeing. The instinct to hold back is not a personal failing. It is a rational response to a biased system. But the interview is not the place to let that system win. The approach that works is to be clear, direct and kind. State your results factually, without apology, without caveat. You do not need to perform confidence. You need to present your experience honestly and let the interviewer draw their own conclusions.
How to present your experience without underselling or overclaiming
The practical fix is to separate the facts from the feelings. Your feelings might say "this was not that impressive" or "other people were involved." The facts say you led a piece of work that delivered a specific result.
Lead with the result, not the process. "I led the digitalisation of our patient management platform, which now generates £5 million in annual revenue" is a factual statement. It is not a claim that you did it alone.
If you find yourself about to add a caveat, pause. Ask yourself: is this caveat factually necessary, or am I managing my discomfort? If the work would not have happened without the decisions you made, the result is yours to state. You do not need anyone else's permission to do that.
The belief underneath the behaviour
Underselling is not just a communication habit. It is often rooted in a belief that you are not good enough, that your experience does not measure up, or that the interviewer will see through you the moment you make a claim about your impact.
If that belief is running in the background, no amount of technique will fix it. You will learn to say the right words but still deliver them with the energy of someone who does not quite believe them. Interviewers pick up on that incongruence.
One way to challenge that belief is to look at the evidence that is already in front of you. If you have been selected for interview, someone has read your CV and decided you are worth their time. At senior level, that decision is not made lightly. They are not interviewing you out of politeness. They saw something in your experience that made them think you could do this job. That is not your opinion. That is their assessment based on the evidence you gave them.
Start there. You have already passed a filter that most candidates did not. The interview is not the point at which you need to prove you deserve to be in the room, because you are already in the room. The interview is where you show them what it would be like to work with you.
Build your evidence base before the interview
One reason candidates undersell in the moment is that they have not done the work beforehand to clarify what they actually delivered. When you have not sat down and catalogued your results with specific numbers and outcomes, you are relying on how you feel about your experience rather than what the evidence shows.
Before the interview, write down your three to five most significant results. Attach a number to each one. Revenue, profit, cost savings, users, retention, whatever metric best captures the impact. These become your anchors. When a question comes up where you feel yourself underselling, you will have a concrete fact to reach for instead of an instinct to minimise.
This exercise often surprises people. When you force yourself to find the number, the impact is usually larger than you assumed. This shows that the gap is not in your experience but rather is in how you have been framing it, to yourself and to others.
What interviewers are actually looking for
Interviewers at senior level are not looking for humility or modesty in how you describe your track record. They are looking for evidence that you can deliver results in their business. When you undersell, you are making their job harder because they have to guess at your impact rather than hearing it clearly.
A candidate who can calmly, clearly state what they delivered and why it mattered is easier to hire than one the panel has to decode. You are not doing the interviewer a favour by being modest. You are creating doubt where none needs to exist. Don’t make the interviewer think.
Last updated September 2026